//
//  Color.h
//  AbstractFactory
//
//  Created by flannery on 2018/12/17.
//  Copyright © 2018年 flannery. All rights reserved.
//

#import <Foundation/Foundation.h>

@protocol Color <NSObject>
-(void)fill;
@end

@interface Red : NSObject <Color>

@end

@interface Green : NSObject <Color>

@end

@interface Blue : NSObject <Color>

@end
